Population genetic structure of <i>Zeugodacus tau</i> species complex in Thailand

Kitthawee, Sangvorn; Julsirikul, Duangta

doi:10.1111/afe.12328

Cited by 7 publications

(4 citation statements)

References 75 publications

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“…We collected samples of Z. tau adults (n = 3-5) from the study area to confirm their identity. These individuals were tested in the laboratory using their mtCOI sequences (Kitthawee and Julsirikul, 2019). The results of the identification revealed that the Z. tau individuals belonged to Z. tau A.…”

Section: Rearing and Temperature Settingsmentioning

confidence: 99%

Effect of short-term exposure to high temperatures on the reproductive behavior and physiological enzyme activities in the fruit fly Zeugodacus tau (Walker)

Wei²,

Li³

et al. 2023

Front. Physiol.

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Zeugodacus tau is an economically important invasive pest of various vegetables and fruits. In this study, we evaluated the effects of short-term (12 h) exposure to high temperatures on the reproductive behaviors and physiological enzyme activities of adult Z. tau flies. When compared to the control group, the mating rate in the treated group increased significantly after exposure to 34°C and 38°C. After 34°C exposure, the mating rate of the control♀-treated♂ mating was the highest (60.0%). The use of high temperatures for a short period reduced the pre-mating period and lengthened the duration of copulation. After 38°C exposure, the mating between treated♀ and treated♂ had the shortest pre-mating period of 39.0 min and the longest copulation duration of 67.8 min. Mating after a brief exposure to high temperatures had a negative impact on female reproduction, whereas mating with males who previously had a brief exposure to 34°C and 38°C significantly increased female fecundity. After 40 °C exposure, the mating between treated♀ and control♂ showed the lowest fecundity and hatching rate of 293.25 eggs and 25.71%, respectively. The mating between control♀ and treated♂ showed the highest fecundity of 1,016.75 eggs after exposure to 38°C. The SOD, POD, and CAT activities exhibited significant changes (increase or decrease) after the short-term exposure of Z. tau adults to high temperatures. After being exposed to 38°C, SOD activity increased by 2.64 and 2.10 times in females and males in the treated group, respectively, compared to the SOD activity in the control group. The AchE, CarE, and GST activities first increased and then decreased with the increase in temperature. CarE activity changed the most after exposure to 38°C, with females and males in the treated group increasing by 7.81 and 1.69 times, respectively, compared to the activity in the control group. In conclusion, mating strategy and physiological stress are important adaptive mechanisms of Z. tau for adapting to short-term heat stress in a sex-specific manner.

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Section: Rearing and Temperature Settingsmentioning

confidence: 99%

Effect of short-term exposure to high temperatures on the reproductive behavior and physiological enzyme activities in the fruit fly Zeugodacus tau (Walker)

Wei²,

Li³

et al. 2023

Front. Physiol.

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“…This may be evidence for repeated, human-assisted movement of fruit flies to that region. Human carriage of fruit fly infested fruit with resultant panmixia has been used as an explanation for the lack of genetic structuring in numerous pest fruit fly species [38,[52][53][54]. While often proposed, this explanation must assume for B. jarvisi and B. tryoni, that human movement of infested fruit is sufficiently extensive to account for the lack of genetic differentiation across >2000km and to hide the historical genetic signatures of multiple, well documented biogeographic barriers.…”

Section: Role Of Human Mediated Dispersal In B Jarvisi Population Str...mentioning

confidence: 99%

Divergent east-west lineages in an Australian fruit fly, (Bactrocera jarvisi), associated with the Carpentaria Basin divide

2023

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Bactrocera jarvisi is an endemic Australian fruit fly species (Diptera: Tephritidae). It occurs commonly across tropical and subtropical coastal Australia, from far-northern Western Australia, across the ‘Top End’ of the Northern Territory, and then down the Queensland east coast. Across this range, its distribution crosses several well documented biogeographic barriers. In order to better understand factors leading to the divergence of Australian fruit fly lineages, we carried out a population genetic study of B. jarvisi from across its range using genome-wide SNP analysis, utilising adult specimens gained from trapping and fruit rearing. Populations from the Northern Territory (NT) and Western Australia were genetically similar to each other, but divergent from the genetically uniform east-coast (= Queensland, QLD) population. Phylogenetic analysis demonstrated that the NT population derived from the QLD population. We infer a role for the Carpentaria Basin as a biogeographic barrier restricting east-west gene flow. The QLD populations were largely panmictic and recognised east-coast biogeographic barriers play no part in north-south population structuring. While the NT and QLD populations were genetically distinct, there was evidence for the historically recent translocation of flies from each region to the other. Flies reared from different host fruits collected in the same location showed no genetic divergence. While a role for the Carpentaria Basin as a barrier to gene flow for Australian fruit flies agrees with existing work on the related B. tryoni, the reason(s) for population panmixia for B. jarvisi (and B. tryoni) over the entire Queensland east coast, a linear north-south distance of >2000km, remains unknown.

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“…Human carriage of fruit fly infested fruit with resultant panmixia has been used as an explanation for the lack of genetic structuring in numerous pest fruit fly species (38,(51)(52)(53). While often proposed, this explanation must assume for B. jarvisi and B. tryoni, that human movement of infested fruit is sufficiently extensive to account for the lack of genetic differentiation across >2000km and to hide the historical genetic signatures of multiple, well documented biogeographic barriers.…”

Section: Role Of Human Mediated Dispersal In B Jarvisi Population Str...mentioning

confidence: 99%

Divergent east-west lineages in an Australian fruit fly associated with the Carpentaria basin divide

Manawaduge

Clarke

Hurwood

2022

Preprint

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Bactrocera jarvisi is an endemic Australian fruit fly species (Diptera: Tephritidae). It occurs commonly across tropical and subtropical coastal Australia, from far-northern Western Australia, across the 'Top End' of the Northern Territory, and then down the Queensland east coast. Across this range, its distribution crosses several well documented biogeographic barriers. In order to better understand factors leading to the divergence of Australian fruit fly lineages, we carried out a population genetic study of B. jarvisi from across its range using genome-wide SNP analysis, utilising adult specimens gained from trapping and fruit rearing. Populations from the Northern Territory (NT) and Western Australia were genetically similar to each other, but divergent from the genetically uniform east-coast (=Queensland, QLD) population. Phylogenetic analysis demonstrated that the NT population derived from the QLD population. We infer a role for the Carpentaria Basin as a biogeographic barrier restricting east-west gene flow. The QLD populations were largely panmictic and recognised east-coast biogeographic barriers play no part in north-south population structuring. While the NT and QLD populations were genetically distinct, there was evidence for the historically recent translocation of flies from each region to the other. Flies reared from different host fruits collected in the same location showed no genetic divergence. While a role for the Carpentaria Basin as a barrier to gene flow for Australian fruit flies agrees with existing work on the related B. tryoni, the reason(s) for population panmixia for B. jarvisi (and B. tryoni) over the entire Queensland east coast, a linear north-south distance of >2000km, remains unknown.

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Population genetic structure of Zeugodacus tau species complex in Thailand

Cited by 7 publications

References 75 publications

Effect of short-term exposure to high temperatures on the reproductive behavior and physiological enzyme activities in the fruit fly Zeugodacus tau (Walker)

Effect of short-term exposure to high temperatures on the reproductive behavior and physiological enzyme activities in the fruit fly Zeugodacus tau (Walker)

Divergent east-west lineages in an Australian fruit fly, (Bactrocera jarvisi), associated with the Carpentaria Basin divide

Divergent east-west lineages in an Australian fruit fly associated with the Carpentaria basin divide

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